How to Wash Glasses in a Dishwasher?

Are you looking for How to wash glasses in a Dishwasher? Here is our guide for washing glasses in the dishwasher. You will learn how to eliminate annoying stains on glass and get a brilliant wash result.

How to Wash Glasses in a Dishwasher

Can You Wash Glasses in the Dishwasher?

Yes, glassware is used frequently and often washed in the dishwasher. Unfortunately, repeated washing and exposure to high temperatures can cloud your favorite glassware.

There are two causes of cloudy glassware; the cloudiness does not appear immediately in both cases. The first reason is limescale, and the second is corrosion. To prevent these two types of cloudiness, preventive and precautionary measures must be taken when washing glass baking dishes or glasses.

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How to Load Glasses in a Dishwasher?

The quality of washing glassware and other dishes depends on the literacy of its loading into the PMM. For glasses and other items to be perfectly clean, first, you need to pour out the remnants of drinks from them and remove food.

The dishes in the dishwasher are tightly stacked, so they do not interfere with water circulation inside the device. For greater convenience in the arrangement of dishes, the sections in most dishwashers can be rearranged, like baking sheets in the oven.

When loading dishes or glasses in dishwasher, always place thin glasses on top. More durable dishes, especially heavily soiled, are always loaded into the lower compartment of the PMM. Put knives, spoons, and other small items in special trays, so they do not break or scratch glassware during washing.

Is It Necessary to Rinse the Glasses Before Loading?

The point of rinsing and soaking dishes is to prevent food residues from clogging the filters and less fat to settle in the device. So the dishwasher will need to be cleaned less often and it can last longer.

If buckwheat sticks to the plate, and onions burnt in the pan, pieces of meat and fat remain, it is better to soak the dishes and rinse before loading. And if pasta was cooked in a saucepan, and there were sandwiches on the dish, that is, they are almost clean, you can not rinse.

Are All Glasses Dishwasher Safe?

There lots of advantages and disadvantages of dishwasher though. The equipment is intended for washing wine, beer, cognac, cocktail glasses, glasses, champagne flutes are dishwasher safe. Crystal dishes are considered an exception: experts recommend washing products made of expensive and fragile material only by hand using soft sponges and gentle cleaners.

How to Prevent Glassware from Breaking into the Dishwasher?

We all know that feeling when it’s hard to decide whether to wash a beautiful, fragile glass by hand without the risk of breaking it or in the dishwasher, after which the glasses will be much cleaner than after washing by hand. 

Glassware in Dishwasher

There is no doubt that a dishwasher in good condition and with the right detergent will give the best result, but how to minimize the risk of breaking something in the process of washing? Some helpful tips and tricks.

1. Contrary to popular belief, shaking does not cause glass objects to break in the dishwasher. The dishes don’t “bounce” from side to side, the water sprays onto the surface, and if the dishwasher is loaded correctly, there shouldn’t be any damage. But the high temperature can have unpleasant consequences. You should wash fragile glassware in a special mode, and if it is not provided in your machine, then at a low temperature.

2. Always place glassware on the top rack of the dishwasher. The temperature is lower there, and the water pressure is less intense. If large glass vases or a carafe are placed on the bottom shelf, ensure they are stable and select a low-temperature wash.

3. If your dishwasher has special sockets for the legs of glasses, use them. They can be placed on the edge of a small fold-out shelf on either side of the top basket, where you usually store larger items.

4. If the wine glasses are too tall to stand upright, you may need to adjust the upper basket’s height. We often think of rearranging the upper basket higher so that larger diameter plates fit in the lower one, but you can also lower the upper basket to fit tall wine glasses.

5. Some dishwashers are equipped with special coasters for glasses. Others offer them as an additional item you can purchase for a fee. You can also buy dishwasher accessories explicitly designed to keep the glassware in the machine safe and sound. They come in the form of cutlery basket-like inserts or silicone stabilizers that attach to the dishwasher basket and stem of the glass.

How to Wash Glasses in the Dishwasher? 4 Ways to Wash Safely

When purchasing a dishwasher, consumers pay attention to its spaciousness, efficiency, and functionality. Modern devices easily wash various contaminants, reliably removing grease, fumes, and food debris.

If you don’t have to worry about the safety of pans and pots, washing elegant glasses can seem like a dangerous undertaking. Can crystal and thin glasses items be washed in the dishwasher? Yes, you can!

1. Temperature Regime

Glass is a very delicate, fragile material. Washing glasses in the dishwasher’s standard mode is not recommended since water is heated to 60-65 degrees, and a sufficiently intensive washing mode can permanently damage them. To avoid unpleasant surprises, experts recommend setting the minimum temperature for cleaning such dishes from 40-45 degrees.

2. Use of rinse aid

In addition to the selection of the temperature regime of the dishwasher, you should pay special attention to the detergent. Aggressive gels and powders are not suitable for delicate dishes – with frequent use, they easily remove dirt and painted patterns on glasses, cups, and saucers, nullifying the desired washing effect. 

Specialists recommend using household chemicals for washing glassware. Such gels not only carefully remove traces of tea and red wine but also do not leave streaks – crystal glasses will regain their original transparency and dazzling brilliance.

3. Competent selection of the program

A properly selected temperature regime and detergent will not have the expected effect without the third component of successful glassware washing – the selection of the optimal program. The standard mode will not work – high temperatures will cause cracks, and powerful streams of water will smash the glasses to smithereens. The Delicate Wash mode comes to the rescue, equipped with all the German brand’s modern dishwashers. 

This program is suitable for gently cleaning lightly soiled delicate glassware, crystal, and fine china, as well as dinnerware with gold-plated rims. During operation, the water temperature not only decreases (depending on the model, up to 40 or 45 degrees). Also, the intensity of the water supply to the chamber ensures the safety of dishes and a brilliant washing result.

4. Regenerating salt

Using only one detergent composition is not enough to make glassware look perfect. Don’t forget to get a regenerating salt designed to soften hard water and dissolve the calcium it contains. Thanks to this substance, glass glasses and glasses will sparkle with cleanliness, and limescale will not appear on the inner walls of the PMM. The thing is that our tap water is poorly purified from impurities.

You can combine any professional glassware cleaner with regenerating salt without any problems. When these substances come into contact, no undesirable chemical reactions occur. So you don’t have to worry about this.

Many people have a question: how often should salt be poured into PMM? It is impossible to answer it unambiguously since it all depends on the degree of hardness of the water and the frequency of use of the dishwasher. 

Previously, it was necessary to pour salt into the PMM, determining the degree of its consumption “by eye.” But today, all professional and some household dishwashers are equipped with an indicator that lights up when the salt in the device runs out and the water hardness increases.

Which Detergent to Choose for Washing Glasses in Dishwasher?

The means used for washing in PMM are divided into two categories:

  • Strong alkaline – they are used for standard washing;
  • Slightly alkaline – for fragile glass.
  • In weakly alkaline products, there are enzymes – enzymes that are active at low temperatures.

To not spoil glassware, you should not use products which can not go in dishwasher or that do not specifically indicate that you can use them for washing glassware.

Best of all, products without phosphates, chlorine, and other harmful components have proven themselves. They clean surfaces with active oxygen and other natural ingredients. Cascade Complete, Finish Quantum, and Gruen-Green are manufacturers of such products.

Why Does Glass Get Cloudy After Washing in Dishwasher?

After repeated washes in PMM, thin-walled glass products turn white. It has been noticed that when washing by hand, nothing like this happens with glasses. Including if they are washed with hot water. So, it’s not about water but detergents used in automatic washing.

Cloudy Glass

On glass objects that are often washed in dishwashers, two types of plaque can form:

  • Reversible: It occurs due to the deposition of scale – it, in turn, appears due to increased water hardness. You can easily remove it with citric acid.
  • Irreversible: This appears due to the corrosion of glass, which changes color and transparency. First, a thin film appears on the glass – it shimmers like an oily stain on water. Then the film acquires a milky hue. It is no longer possible to wash it with conventional means.

The irreversible film occurs due to the high alkali level in the powder or gel composition. That is why it is so important to use slightly alkaline formulations.

Alkali harms glass – it dissolves it. Detergent compositions contain silicates, which slow down the dissolution. But at the same time, a milky film appears on the surface. The film will not form as quickly if there are no silicates in the composition.

How to Prevent Cloudy Glasses in Dishwasher?

How to prevent or reduce the appearance of plaque:

  • Use salt to soften hard water.
  • Do not turn on the temperature above 40-50 degrees.
  • Adjust the amount of powder and gel – in hard water. They need more. Some machines regulate the dose themselves, measuring the hardness automatically.
  • Another reason for the appearance of plaque is physical friction. Glass products rub against each other during washing – this causes haze.



If you fulfill all the conditions for washing glasses in PMM, you can maintain their appearance at the highest level for a long time. Automatic washing ensures a perfect result and prevents glass breakage, often when washing by hand. And all it takes to keep the glasses safe and sound are not to break them at other times than washing.